linux/net/nfc, branch v3.9

NFC: llcp: fix info leaks via msg_name in llcp_sock_recvmsg()

2013-04-07T20:28:02Z

The code in llcp_sock_recvmsg() does not initialize all the members of struct sockaddr_nfc_llcp when filling the sockaddr info. Nor does it initialize the padding bytes of the structure inserted by the compiler for alignment. Also, if the socket is in state LLCP_CLOSED or is shutting down during receive the msg_namelen member is not updated to 0 while otherwise returning with 0, i.e. "success". The msg_namelen update is also missing for stream and seqpacket sockets which don't fill the sockaddr info. Both issues lead to the fact that the code will leak uninitialized kernel stack bytes in net/socket.c. Fix the first issue by initializing the memory used for sockaddr info with memset(0). Fix the second one by setting msg_namelen to 0 early. It will be updated later if we're going to fill the msg_name member. Cc: Lauro Ramos Venancio Cc: Aloisio Almeida Jr Cc: Samuel Ortiz Signed-off-by: Mathias Krause Signed-off-by: David S. Miller

NFC: llcp: Keep the connected socket parent pointer alive

2013-03-26T13:35:57Z

And avoid decreasing the ack log twice when dequeueing connected LLCP sockets. Signed-off-by: Samuel Ortiz

NFC: llcp: Remove possible double call to kfree_skb

2013-03-20T15:46:40Z

kfree_skb was called twice when the socket receive queue is full Signed-off-by: Thierry Escande Signed-off-by: Samuel Ortiz

NFC: llcp: Detach socket from process context only when releasing the socket

2013-03-20T10:30:37Z

Calling sock_orphan when e.g. the NFC adapter is removed can lead to kernel crashes when e.g. a connection less client is sleeping on the Rx workqueue, waiting for data to show up. Signed-off-by: Samuel Ortiz

NFC: llcp: Report error to pending sockets when a device is removed

2013-03-08T16:35:22Z

Signed-off-by: Samuel Ortiz

NFC: llcp: Clean raw sockets from nfc_llcp_socket_release

2013-03-08T16:34:57Z

Signed-off-by: Samuel Ortiz

NFC: llcp: Clean local timers and works when removing a device

2013-03-08T13:25:04Z

Whenever an adapter is removed we must clean all the local structures, especially the timers and scheduled work. Otherwise those asynchronous threads will eventually try to access the freed nfc_dev pointer if an LLCP link is up. Signed-off-by: Samuel Ortiz

NFC: llcp: Decrease socket ack log when accepting a connection

2013-03-08T13:25:04Z

This is really difficult to test with real NFC devices, but without this fix an LLCP server will eventually refuse new connections. Signed-off-by: Samuel Ortiz

hlist: drop the node parameter from iterators

2013-02-28T03:10:24Z

I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin Acked-by: Paul E. McKenney Signed-off-by: Sasha Levin Cc: Wu Fengguang Cc: Marcelo Tosatti Cc: Gleb Natapov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2013-02-21T20:05:51Z

Pull driver core patches from Greg Kroah-Hartman: "Here is the big driver core merge for 3.9-rc1 There are two major series here, both of which touch lots of drivers all over the kernel, and will cause you some merge conflicts: - add a new function called devm_ioremap_resource() to properly be able to check return values. - remove CONFIG_EXPERIMENTAL Other than those patches, there's not much here, some minor fixes and updates" Fix up trivial conflicts * tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits) base: memory: fix soft/hard_offline_page permissions drivercore: Fix ordering between deferred_probe and exiting initcalls backlight: fix class_find_device() arguments TTY: mark tty_get_device call with the proper const values driver-core: constify data for class_find_device() firmware: Ignore abort check when no user-helper is used firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER firmware: Make user-mode helper optional firmware: Refactoring for splitting user-mode helper code Driver core: treat unregistered bus_types as having no devices watchdog: Convert to devm_ioremap_resource() thermal: Convert to devm_ioremap_resource() spi: Convert to devm_ioremap_resource() power: Convert to devm_ioremap_resource() mtd: Convert to devm_ioremap_resource() mmc: Convert to devm_ioremap_resource() mfd: Convert to devm_ioremap_resource() media: Convert to devm_ioremap_resource() iommu: Convert to devm_ioremap_resource() drm: Convert to devm_ioremap_resource() ...